KVM: Advertise synchronized mmu support to userspace

Signed-off-by: Avi Kivity <avi@qumranet.com>
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index c7b01ef..0d682fc 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -883,6 +883,7 @@
 	case KVM_CAP_PIT:
 	case KVM_CAP_NOP_IO_DELAY:
 	case KVM_CAP_MP_STATE:
+	case KVM_CAP_SYNC_MMU:
 		r = 1;
 		break;
 	case KVM_CAP_COALESCED_MMIO: